The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 2008
Filed:
Feb. 02, 2004
Andreas Langsdorf, Ingelheim a. M., DE;
Frank Buellesfeld, Frankfurt, DE;
Andreas Langsdorf, Ingelheim a. M., DE;
Frank Buellesfeld, Frankfurt, DE;
Schott AG, Mainz, DE;
Abstract
The method of making globular or spherical bodies of optical quality includes filling receptacles () in a heat-resistant support () made of a porous material with glass gobs (); conducting gas through the heat-resistant support so that a gas flow () passes through the support in a direction () opposite to a direction in which gravity acts; heating the heat-resistant support () to a temperature at which the glass gobs () have a viscosity of up to about 10poise; maintaining the support () at this temperature for a predetermined time interval; and then cooling the support () to ambient temperature while continuing to provide the gas flow () through the support ().